EP0030995A2 - Compteur mécanique pour la détermination de quantités de chaleur, en particulier pour chauffage central - Google Patents

Compteur mécanique pour la détermination de quantités de chaleur, en particulier pour chauffage central Download PDF

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Publication number
EP0030995A2
EP0030995A2 EP80102938A EP80102938A EP0030995A2 EP 0030995 A2 EP0030995 A2 EP 0030995A2 EP 80102938 A EP80102938 A EP 80102938A EP 80102938 A EP80102938 A EP 80102938A EP 0030995 A2 EP0030995 A2 EP 0030995A2
Authority
EP
European Patent Office
Prior art keywords
counting device
mechanical counting
housing part
impeller
mechanical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP80102938A
Other languages
German (de)
English (en)
Other versions
EP0030995A3 (fr
Inventor
Walter Opitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0030995A2 publication Critical patent/EP0030995A2/fr
Publication of EP0030995A3 publication Critical patent/EP0030995A3/fr
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
    • G01F1/07—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission with mechanical coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14—Casings, e.g. of special material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K17/00—Measuring quantity of heat
    • G01K17/06—Measuring quantity of heat conveyed by flowing media, e.g. in heating systems e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device

Definitions

  • the invention relates to a mechanical counting device for determining the heat quantity, in particular for central heating systems or for measuring hot water consumption, which is arranged in the transport system of the energy carrier medium of a heating device.
  • Such direct or indirect measuring counters should record the amount of hot water used as precisely as possible, especially in large residential complexes, so that the injustices of a flat-rate calculation can be avoided.
  • the amount of heat supplied and to be calculated for a radiator or a radiator system should be recorded and summed up as precisely as possible over the entire consumption period. The same applies to the amount of hot water consumed at the tapping points provided.
  • the measuring system should be as independent as possible of the ambient temperature and other disruptive influences such as strongly changing consumption quantities of the energy carrier medium work precisely over a long period of time.
  • the idea of the invention resides in adjusting the measuring tube as unambiguously as possible so that the measuring errors are kept as low as possible by displacement.
  • the amount of alcohol evaporated from the measuring tube serves as a comparative measure of the amount of heat consumed.
  • such devices are, as is evident from the literature, very imprecise, so that this type of device can only be used by construction companies as an auxiliary measuring device.
  • GM 7822969 A somewhat improved version of the evaporation heat meter described above is described in GM 7822969.
  • the housing which consists of a rear part and a front part, is to be protected here, the measuring ampoule being accommodated between the two.
  • a reversible thermometer strip On the front part or on the side walls of the housing, a reversible thermometer strip is attached, which has several color fields jumping around each other at 5 ° C.
  • the applicant assumes the correct assumption that the measuring liquid expands strongly when heated and is read in this state.
  • thermometer strip now has the task of displaying the temperature of the measuring liquid present at the time of the reading. It is now proposed to use this temperature correction value to correct the reading results via an electronic data system.
  • an impeller is arranged in the supply or return of the heat transfer medium of a heating device, which, by means of a magnetic coupling via a temperature-controlled hydraulic transmission, couples the counter to the impeller in a non-positive manner.
  • the two hydraulic coupling parts are designed in the manner of the rotary viscometer and work against each other. One is heated by the flow, the other by the return. Since there is only a non-positive and no positive connection here and the distances for the effect of the magnetic forces have been chosen too large, a slip-free function cannot be expected. The system error is so large that exact operation does not appear possible.
  • Another heat meter is also known from OS 2 716 787. It is flowed through by the heat transfer medium and has two temperature sensors, which are arranged on the flow and return. In addition, a Device for vortex generation is required with which a non-axial speed component can be conveyed to the flow of the heat transfer medium.
  • a turbine coaxial in the line is required, to which a counting device is assigned.
  • the vortex generating device is controlled by the measuring sensors in the flow and return in such a way that the number of turbine revolutions corresponds to the product of the flow quantity and the temperature difference. The amount of heat consumed can thus be read directly.
  • the device may work as long as it is adjusted and maintained by a specialist. With the smallest deposits, the flow components of the swirling water change and thus result in a non-verifiable system error. This construction is definitely not suitable for maintenance-free long-term use.
  • the invention has for its object to describe a mechanical counting device for determining the amount of heat, which can be operated precisely and maintenance-free for a long time.
  • the influence of the ambient temperature and inaccuracies in the adjustment of measuring elements should be eliminated and a direct measurement of the energy source should be possible.
  • the measuring device must be calibratable and the results must be exactly reproducible.
  • a one-time installation should be made possible without periodically replaceable or wearing parts.
  • a rotor body (3) is mounted in the transport tube of the energy carrier medium, the revolutions of which are transmitted via a rigid reduction gear (13, 7) to an adding counter (9) by means of gear wheels (12, 7), the Adding unit (9) is housed in a housing part (1) separate from the quantity counting unit and there is an automatically releasable or producible positive connection (11, 12) between the transmission elements of the measured values.
  • gunmetal, brass, aluminum or hot water-resistant plastic e.g. PE
  • the axis (4) of the impeller (3) should be made of nitrided steel. Due to the high surface hardness, the wear resistance can be optimized on the one hand and warping can be avoided, which occurs primarily when hardening high-quality steels.
  • a problem is the sealing of the interior (6) of the reduction gear (7). If no great frictional forces are to occur at the sealing point (5), water must be expected to penetrate. Experience has shown, however, that this also leads to deposits or signs of corrosion on the small parts of the gearbox.
  • the gear wheels (7) and seals (5) have such narrow working gaps that preferably low-viscosity oil is used. With a specific weight below 1, it is ensured that the penetrating water which fills or leaves the space of the transmission shaft (13) below the sealing point (5) via a compensating bore can hit the oil cushion (6) placed above it and cannot penetrate due to the different specific weights.
  • the bevel gear (11) is machined onto the axis (4) of the impeller.
  • a known means such as e.g. Glue, braze, etc. to connect.
  • Form-fitting connections are also possible.
  • the advantages of the present application in accordance with the invention consist primarily in the fact that the influences of the environment or of handling (ambient temperature, etc.) have been switched off by means of a direct measurement of the energy carrier medium.
  • the measurements are exactly reproducible, the device is calibratable and works maintenance-free over a long period of time with high measurement accuracy.
  • no periodically wearing replacement parts are provided, so that a single installation is sufficient and the reading can be made by the apartment owner.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Volume Flow (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
EP80102938A 1979-12-06 1980-05-27 Compteur mécanique pour la détermination de quantités de chaleur, en particulier pour chauffage central Withdrawn EP0030995A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2949008 1979-12-06
DE19792949008 DE2949008A1 (de) 1979-12-06 1979-12-06 Mechanische zaehlvorrichtung zur waermemengenbestimmung, insbesondere fuer zentralheizungen oder zur warmwasserverbrauchsmessung, welche im transportsystem des energietraegermediums einer heizeinrichtung angeordnet ist

Publications (2)

Publication Number Publication Date
EP0030995A2 true EP0030995A2 (fr) 1981-07-01
EP0030995A3 EP0030995A3 (fr) 1982-09-15

Family

ID=6087695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102938A Withdrawn EP0030995A3 (fr) 1979-12-06 1980-05-27 Compteur mécanique pour la détermination de quantités de chaleur, en particulier pour chauffage central

Country Status (2)

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EP (1) EP0030995A3 (fr)
DE (1) DE2949008A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150671A1 (fr) * 1984-01-13 1985-08-07 Jakob Huber Procédé de réglage d'une installation thermique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306046U1 (de) * 1993-04-21 1993-09-09 Neckien, Eberhard, 78126 Königsfeld Umwälzpumpe mit Niederspannungsmotor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB430697A (en) * 1934-10-22 1935-06-24 Philip Arthur Potter Improvements in water meters
FR813424A (fr) * 1935-08-22 1937-06-01 Wassermesser Patent Ges M B H Compteur d'eau à l'abri de la corrosion
FR1164048A (fr) * 1956-12-28 1958-10-06 Compteur à liquide perfectionné
DE1115940B (de) * 1959-03-27 1961-10-26 Compteurs Comp D Fluessigkeitszaehler mit Vertikalturbine
FR1463055A (fr) * 1965-10-05 1966-06-03 Int Standard Electric Corp Débitmètre
US3563085A (en) * 1967-07-28 1971-02-16 Kent Ltd G Liquid meter counter
DE2400408A1 (de) * 1974-01-05 1975-07-10 Herbert Hess Kunststoff-gehaeuse

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB430697A (en) * 1934-10-22 1935-06-24 Philip Arthur Potter Improvements in water meters
FR813424A (fr) * 1935-08-22 1937-06-01 Wassermesser Patent Ges M B H Compteur d'eau à l'abri de la corrosion
FR1164048A (fr) * 1956-12-28 1958-10-06 Compteur à liquide perfectionné
DE1115940B (de) * 1959-03-27 1961-10-26 Compteurs Comp D Fluessigkeitszaehler mit Vertikalturbine
FR1463055A (fr) * 1965-10-05 1966-06-03 Int Standard Electric Corp Débitmètre
US3563085A (en) * 1967-07-28 1971-02-16 Kent Ltd G Liquid meter counter
DE2400408A1 (de) * 1974-01-05 1975-07-10 Herbert Hess Kunststoff-gehaeuse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THE ENGINEERS DIGEST, Band 22, Nr. 12 1961, London (GB) "High-Precision Industrial Liquid Meters" Seite 103 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150671A1 (fr) * 1984-01-13 1985-08-07 Jakob Huber Procédé de réglage d'une installation thermique

Also Published As

Publication number Publication date
DE2949008A1 (de) 1981-06-11
EP0030995A3 (fr) 1982-09-15

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